Tender, if at times overly sentimental, teen drama about four lifelong friends (Alexis Bledel, Blake Lively, America Ferrera and Amber Tamblyn) who spend their first summer apart, during which they experience life-changing adolescent ordeals, but remain linked by a shared pair of magical denim jeans. Directed by Ken Kwapis from the bestseller by Ann Brashares and with spirited performances by the quartet of young actresses, the film, despite its bubblegum title and breezy Judy Blume veneer, tackles heavy issues like divorce, death and teen sexuality (which may be inappropriate for younger teens) and ultimately imparts a life-affirming message about friendship and family. An implied sexual encounter and sexual innuendo, some mature thematic elements, including one character's loss of virginity, as well as sporadic mildly crude language. The USCCB Office for Film & Broadcasting classification is A-II -- adults and adolescents. The Motion Picture Association of America rating is PG -- parental guidance suggested.